Top stop for slide fastener tapes



Feb. 20, 1940. M K|E5$L7|NG 2,191,280

TOP STOP FOR SLIDE FASTENER TAPES Filed Dec. 3 9 1938 INVENTORMaxlaessling.

ATTO R N EY Patented Feb. 20, 1940/ UNITED STATES PATENT OFFICE TOP STOPFOR SLIDE FASTENER TAPES Max Kiessling, Waterbury, Conn.

Application December 19, 1938, Serial No. 246,602

1 Claim. This invention relates to slide fasteners, and

' more particularly to an improved form of top stop for the slidermember to be attached to a pair of cooperating element-holding tapes.

When slide fastener tapes are applied to the opposite sides of theopening in a. bag, or the like, it has been found that if an attempt ismade to close the edges of the opening together at the top of the tapes;the slider member and elements are likely to become jammed. By means ofthe present invention, the above and other disadvantages have beenovercome.

One object of this invention is to provide an improved top stop for theslider member which will maintain the beaded edges of the tapes at theupper end of the opening at each side of the stop spaced apart bothabove and below the top stop an amount substantially equal to thedistance between the diverging outlets at the top of the slider member.

Another object is to provide a top stop device of the above nature whichwill have at its bottom an arcuate recess shaped to substantially fitthe top bridge, or neck of the slider'member.

Still another object is to provide a stop device of the above naturehaving means to securely grip the opposing beaded edges of the tapes forholding said edges spaced apart the same distances above and below saidstop device. v

A further object of this invention is to provide an improved top stopfor slide fastener tapes of the above nature which will be relativelyinexpensive to manufacture, simple in construction, compact, ornamentalin appearance, and very efllcient and durable in use.

. With these and other objects in view, which will appear as thedescription proceeds, there has been illustrated on the accompanyingdrawing, one form in which the invention may be conveniently embodied inpractice.

In the drawing:

Fig. 1 is a front plan view of a stop device for the slider member of apair of slide fastener tapes as it appears when in its uppermost,position with the opening closed.

Fig. 2 is a view similar to Fig. 1 showing the Fig. 5 is a developmentview of the. stop device in flat condition before bending it into U-formfor attachment to'the beads of a pair of slide fastener tapes.

Referring now to the drawing, wherein like reference charactersdesignate like parts 5 throughout the several views, the numerals l andH indicate a pair of adjacent elementholding tapes of a slide fastenerhaving opposing beaded edges l2 and I3 respectively, along which twospaced rows of fastening elements l4 and ll: of the usual form aresecurely clamped.

The fastening elements l4 and I5 are adapted to be interlocked andunlocked by means of a slider member l6 of the usual form which may bereadily slid along between the beaded edges I2 and 13 by means of ahinged pull tab I I.

In'order to limit the upward movement of the slider member l6, provisionis made of a top stop l8 which is adapted to be disposed at the upperend IQ of the opening between the beaded edges l2 and I3 of the tapes l0and H, and is adapted to hold said beaded edges permanently spaced apartat said upper end a predetermined amount which is preferably equal tothe distance between the outlets at the top of the flared end 2| of theslider member l6. By means of this construction it will be seen that thetop portion of the tapes will lie flat and parallel to each other whenthe fastening members l4 and I5 are in unlocked positionfsee Fig. 2).The top stop I8 is also adapted to hold the beaded edges I2 and I3spaced apart above the upper side of the stop device It an amount equalto the'distance they are spaced apart below it.

The top stop [8 is preferably made by stamping a blank 22 (see Fig. 5)from sheet metal and then forming four inclined grooves 23, 24, 25 and26 upon the inclined wing portions 21, 28, 29 and. 30 thereof. The wingportions 21 and 29 are connected together by a side plate 3| which iscut away at its outer edge to form an arcuate recess 32. The wingportions 28 and 36 are similarly connected together by a side plate 33which is cut away at its outer edge to form an arcuate recess 34. Thewing-connecting side plates 3l and 33 are joined together by a centerneck portion'35. The spacing between the grooves 23, 24 and 25, 26 isequal to the distance it is desired to hold the beaded edges l2 and I3apart at the upper part of the tapes. The depth of the recesses 32 and34 is substantially equal to the width of the protruding neck 36 of theflared portion 2| of the slide member l6, so that the opening l9 betweenthe tapes at this point will 55 abuts the stop device l8, as shown inFig. 1.

The inclined grooves 23, 24, 25 and 26 have sharp edges which bite intothe surfaces of the beads I 2 and I3 to strengthen the grip of the topslider stop thereon and effectively prevent said beads from sliding ortwisting with respect to said stop without injury to said beads.

Assembly The top stop device I8 is adapted to be assembled to the tapesI0 and II by first disposing the blank 22 in such a position that theinclined wings 28 and 30 will lie underneath the tapes l0 and H, andwith the beaded edges l2 and I3 resting across the inclined grooves 24and 26. The Wings 21 and 29 will then be bent down upon the beaded edgesl2 and l3,-the neck por- I tion being arcuately bent as shown in Fig. 4.It will thus be seen that the beaded edges !2 and i3 will be tightlyclamped between the wings 21, 29 and 28, 30, respectively, so that thetop stop l8 will be securely attached to the tapes I0 and H.

When the top stop it is in assembled position, the recesses 32 and 34will be parallel and will form a seat for the protruding neck 36 of theslide member l6.

One advantage of the present invention is that in use no binding willoccur between the slider member l6 and the fastening elements I4 and I5,

be substantially filled when the slide member I6 nor with the stopdevice 58. Furthermore, the beaded edges l2 and it both above and belowthe stop device l8 will be maintained in aline- :ment and spaced apartan amount equal to the spacing of the outlets of the flared portion 2|of the slider member l6.

While there has been disclosed in this specifi- I cation one form inwhich the invention may be conveniently embodied, it is to be understoodthat this form is shown for the purpose of illustration only, and thatthe invention is not to be limited to the specific disclosure, but maybe modified and embodied in various other forms without departing fromits spirit. In short, the invention includes all of the modificationsand embodiments coming within the scope of the following claim.

Having thus fully described the invention, what is claimed as new andfor which it is desired to secure Letters Patent, is:

A top stop device for a slide fastener wherein a pair of tapes havingopposing beaded edges are provided, said device including a pair ofopposing fiat side plates a U-shaped portion connecting said sideplates, each side plate having a pair of wing portions, said wingportions being provided with converging opposed grooves to engage thebeaded edges of said tapes to hold them in spaced apart relation.

MAX KIESSLING.

